Right now I have and 8x8 coop that I can walk into. Nesting boxes are about 18 in. off the ground with roosts all being at different heights above the boxes. I have an opportunity to get acouple more hens, but my coop is maxed out. I have a dog house that I hear so many people use. But how does everything fit inside? The roosts can be so low? Or should I take the top off and raise the roof up alittle? Please help a chicken addict!!! I dont want to pass these up, but dont want to have unhappy hens!